CN204130406U - Ultra-thin keyboard switches with a smooth depress - Google Patents

Abstract

The utility model discloses an ultra-thin keyboard switch which can be pressed down stably, comprising a seat body, a static contact piece, a movable contact piece, a keycap, a balance frame mechanism and a reset mechanism; the key cap covers the static contact piece and the movable contact piece, and the balance frame mechanism and the reset mechanism are both positioned below the key cap; by this, through utilizing the steady push down of gimbal mechanism guide key cap, this key cap or gimbal mechanism make movable contact and stationary contact point contact on acting on the movable contact, and cooperation canceling release mechanical system makes the movable contact, key cap or gimbal mechanism reset, the form of the adoption guide pillar of tradition has been replaced, make the whole thickness attenuate of product, and, no matter the finger acts on any position of key cap, gimbal mechanism all can realize the linkage, realize the steady push down of key cap, make the conductive connection of stationary contact and movable contact more sensitive, it is more convenient that the product uses.

Description

Ultra-thin keyboard switches with a smooth depress

technical field

The utility model relates to the technology in the field of keyboard switches, in particular to an ultra-thin keyboard switch that can be pressed down steadily. the

Background technique

Keyboard switch, as the name implies, is a switch applied and installed on the keyboard. The main structure of this switch includes a base, an upper cover, a static contact, a moving contact and a button. The upper cover and the base are enclosed to form a The accommodating cavity, the static contact piece, the moving contact piece and the button piece are arranged in the accommodating cavity, and one end of the button piece is exposed outside the accommodating cavity, by pressing and manipulating the button piece, the button piece moves up and down, and then through the button The component acts on the moving contact piece, so that the moving contact piece is connected or disconnected from the static contact piece. the

Although the above-mentioned existing keyboard switch structure can provide the user with the effect of disconnecting or connecting the connection between the static contact piece and the moving contact piece, it is indeed progressive, but in actual use, it is found that its own structure and use There are still many deficiencies in performance, which cause the existing keyboard switches to fail to achieve the best use effect and work efficiency in practical applications. The shortcomings are summarized as follows: 

The button part of the switch of the existing keyboard is in the form of a guide post, which makes the entire product thicker, and the button part is installed at the bottom center of the keycap. When the finger only acts on one side edge of the keycap, the button part cannot be smoothly lowered. Pressure, and then it is impossible to realize the conduction between the static contact piece and the moving contact piece, which is inconvenient to use.

Utility model content

In view of this, the utility model aims at the deficiencies in the prior art, and its main purpose is to provide an ultra-thin keyboard switch that can be pressed down stably, and its main purpose is to provide an ultra-thin keyboard switch that can effectively solve the current There is a problem that the keyboard switch is thick and inconvenient to use. the

In order to achieve the above object, the utility model adopts the following technical solutions:

An ultra-thin keyboard switch that can be pressed down stably, including a base body, a static contact piece, a moving contact piece, a keycap, a balance frame mechanism and a reset mechanism; the static contact piece and the moving contact piece are both arranged on the base body, The static contact piece has a static contact, and the moving contact piece has a moving contact. The moving contact and the static contact are set up and down. The keycap covers the static contact piece and the moving contact piece. Below, the balance frame mechanism guides the keycap to press down steadily. The keycap or balance frame mechanism acts on the moving contact piece to make the moving contact contact with the static contact. The reset mechanism promotes the moving contact piece, keycap or balance frame mechanism reset.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

By using the balance frame mechanism to guide the keycap to press down steadily, the keycap or balance frame mechanism acts on the moving contact piece to make the movable contact contact with the static contact, and cooperates with the reset mechanism to promote the moving contact piece, keycap or balance frame mechanism Resetting replaces the traditional form of guide pillars, making the overall thickness of the product thinner, and, no matter where the finger acts on the keycap, the balance frame mechanism can realize linkage, realize the stable pressing of the keycap, and make the static touch The conductive connection between the chip and the moving contact is more sensitive, and the product is more convenient to use.

In order to illustrate the structural features and functions of the utility model more clearly, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. the

Description of drawings

Fig. 1 is the structural diagram under the free state of the first preferred embodiment of the utility model;

Fig. 2 is the structural diagram under the conduction state of the first preferred embodiment of the present utility model;

Fig. 3 is the structural diagram under the free state of the second preferred embodiment of the utility model;

Fig. 4 is the structural diagram under the conduction state of the second preferred embodiment of the present utility model;

Fig. 5 is the structural diagram under the free state of the 3rd preferred embodiment of the present utility model;

Fig. 6 is a schematic diagram of the structure of the third preferred embodiment of the utility model in the conduction state;

Fig. 7 is the structural diagram under the free state of the 4th preferred embodiment of the utility model;

Fig. 8 is a schematic diagram of the structure of the fourth preferred embodiment of the utility model in the conduction state;

Fig. 9 is a schematic structural diagram of the fifth preferred embodiment of the utility model in a free state;

Fig. 10 is a schematic diagram of the structure of the fifth preferred embodiment of the present invention in the conduction state;

Fig. 11 is the structural diagram under the free state of the 6th preferred embodiment of the present utility model;

Fig. 12 is a schematic structural diagram of the sixth preferred embodiment of the present invention in the conduction state;

Fig. 13 is the structural diagram under the free state of the seventh preferred embodiment of the utility model;

Fig. 14 is a schematic diagram of the structure of the seventh preferred embodiment of the present invention in the conduction state;

Fig. 15 is the structural diagram under the free state of the 8th preferred embodiment of the utility model;

Fig. 16 is a schematic structural diagram of the eighth preferred embodiment of the present invention in the conduction state;

Fig. 17 is the structural diagram under the free state of the ninth preferred embodiment of the utility model;

Fig. 18 is a schematic diagram of the hidden balance frame mechanism in Fig. 17;

Fig. 19 is a schematic structural diagram of the ninth preferred embodiment of the present invention in the conduction state;

Fig. 20 is a schematic diagram of the hidden balance frame mechanism in Fig. 19;

Fig. 21 is the structural diagram under the free state of the tenth preferred embodiment of the utility model;

Fig. 22 is a schematic structural diagram of Fig. 21 after hiding the gimbal mechanism;

Fig. 23 is a schematic diagram of the structure of the tenth preferred embodiment of the present invention in the conduction state;

Fig. 24 is a schematic structural diagram of Fig. 23 after hiding the gimbal mechanism;

Fig. 25 is an exploded view of an eleventh preferred embodiment of the present utility model;

Fig. 26 is the structural diagram under the free state of the twelfth preferred embodiment of the utility model;

Fig. 27 is a schematic diagram of the hidden balance frame mechanism in Fig. 26;

Fig. 28 is a schematic structural diagram of the twelfth preferred embodiment of the present invention in the conduction state;

Fig. 29 is a schematic diagram of the hidden balance frame mechanism in Fig. 28;

Fig. 30 is a schematic structural diagram of the thirteenth preferred embodiment of the utility model in a free state;

Fig. 31 is a schematic diagram of the structure of Fig. 30 after hiding the gimbal mechanism;

Fig. 32 is a schematic structural diagram of the thirteenth preferred embodiment of the present invention under the conduction state;

Fig. 33 is a schematic structural diagram of Fig. 32 after hiding the gimbal mechanism;

Fig. 34 is an exploded view of a fourteenth preferred embodiment of the present utility model;

Fig. 35 is an exploded view of another angle of the fourteenth preferred embodiment of the present utility model;

Fig. 36 is another perspective exploded view of the fourteenth preferred embodiment of the present utility model;

Fig. 37 is a partial assembly view of the fourteenth preferred embodiment of the present utility model;

Fig. 38 is a schematic diagram of the state in which the upper frame and the lower frame in Fig. 5 are opened;

Fig. 39 is a schematic view of the use state of the fourteenth preferred embodiment of the present utility model;

Fig. 40 is an enlarged schematic view of the upper frame and the lower frame in the fourteenth preferred embodiment of the present invention;

Fig. 41 is a sectional view of a fourteenth preferred embodiment of the present utility model;

Fig. 42 is a perspective schematic diagram of partial assembly of the fifteenth preferred embodiment of the utility model;

Fig. 43 is a partial assembly perspective view of the sixteenth preferred embodiment of the present invention.

Detailed ways

Please refer to Fig. 1 and shown in Fig. 2, it has shown the specific structure of the first preferred embodiment of the present utility model, comprises seat body 10, static contact piece 20, moving contact piece 30, keycap 40, balance frame Mechanism 50 and reset mechanism 60. the

The static contact piece 20 and the movable contact piece 30 are all arranged on the seat body 10, the static contact piece 20 has a static contact 21, the movable contact piece 30 has a movable contact 31, and the movable contact 31 and the static contact 21 are arranged up and down. , the keycap 40 covers the static contact piece 20 and the moving contact piece 30, the gimbal mechanism 50 and the reset mechanism 60 are located below the keycap 40, the gimbal mechanism 50 guides the keycap 40 to press down steadily, and the keycap 40 Or the balance frame mechanism 50 acts on the movable contact piece 30 to make the movable contact 31 contact with the static contact 21, and the reset mechanism 60 promotes the reset of the movable contact piece 30, the keycap 40 or the balance frame mechanism 60. the

In this embodiment, the movable contact piece 30 is a shrapnel structure, the movable contact 31 is located above the static contact 21, and the bottom of the keycap 40 is protruded with a pressing portion 41, and the pressing portion 41 is located on the moving contact piece. 31, the pressing portion 41 pushes down the movable contact piece 30. The balance frame mechanism 50 includes two balance pieces 51, the lower ends of which are pivotally connected to the base 10 at the same time. The two balance pieces The upper ends of 51 are symmetrically separated from each other, and the upper ends of the two balancing pieces 51 are slidably pivoted to the bottom of the keycap 40; the

As shown in Figure 1, in the free state, the movable contact 31 and the static contact 21 are separated from each other; as shown in Figure 2, when the keycap 40 is pressed, the pressing portion 41 acts on the movable contact piece 30, so that The movable contact 31 is in contact with the static contact 21 to achieve conduction. At this time, the upper ends of the two balance pieces 51 are separated from each other, and the extension spring is in a stretched state. When the keycap 40 is released, the extension spring promotes the balance of the two The upper ends of the parts 51 are close to each other and reset, and under the action of the balance part 51, the keycap 40 is also reset, and the pressing part 41 no longer presses the moving contact piece 30, and the moving contact piece 30 resumes elastic deformation, so that the moving contact 31 The connection is disconnected away from the stationary contact 21. the

Please refer to shown in Fig. 3 and Fig. 4, it has shown the specific structure of the second preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of the aforementioned first preferred embodiment, and its the difference is:

In this embodiment, the upper ends of the two balance pieces 51 are pivotally connected to the bottom of the keycap 40 at the same time, and the lower ends of the two balance pieces 51 are symmetrically separated from each other, and the lower ends of the two balance pieces 51 can be connected to the base body 10. Slidingly pivoted; the reset mechanism 60 is also a tension spring, and the two ends of the tension spring are respectively connected to the lower ends of the two balance pieces 51 . When the keycap 40 is pressed, the lower ends of the two balance pieces 51 are separated from each other, the extension spring is in a stretched state, and the movable contact piece 30 makes the movable contact 31 and the static contact 21 contact and conduct under the action of the pressing part 41 ; When the keycap 40 is released, the tension spring urges the lower ends of the two balance pieces 51 to approach each other and reset, so that the movable contact 31 is separated from the static contact 21 .

Please refer to Fig. 5 and shown in Fig. 6, it has shown the concrete structure of the third preferred embodiment of the present utility model, and the concrete structure of this embodiment is basically the same as the concrete structure of aforementioned first preferred embodiment, and its institute the difference is:

In this embodiment, the lower ends of the two balance pieces 51 are separated from each other and pivotally connected with the seat body 10 respectively, the upper ends of the two balance pieces 51 are symmetrically separated from each other, and the upper ends of the two balance pieces 51 are also slidable with the bottom of the keycap 40 The ground is pivotally connected; the reset mechanism is also a tension spring, and the two ends of the tension spring are respectively connected to the upper ends of the two balance pieces.

The working principle of this embodiment is basically the same as that of the aforementioned first preferred embodiment, and the working principle of this embodiment will not be described in detail here. the

Please refer to shown in Fig. 7 and Fig. 8, it has shown the specific structure of the 4th preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of aforementioned third preferred embodiment, and its the difference is:

In this embodiment, the reset mechanism 60 is a spring, and the two ends of the spring respectively abut against the lower ends of the two balance pieces 51 to force the two balance pieces 51 to reset. When the keycap 40 is pressed, the upper ends of the two balance pieces 51 are separated from each other, and the lower ends of the two balance pieces 51 act on the spring so that the spring is compressed. The contacts 21 are in contact with each other; when the keycap 40 is released, the two ends of the spring respectively act on the lower ends of the two balance pieces 51 to make the upper ends of the two balance pieces 51 close to each other and reset, so that the movable contact 31 leaves the static contact 21.

Please refer to Fig. 9 and shown in Fig. 10, it shows the specific structure of the fifth preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of the foregoing first preferred embodiment, and its the difference is:

In this embodiment, the base 10 is provided with a conductive support 70, and the two sides of the upper end of the conductive support 70 are symmetrically provided with fulcrum grooves 71. There are two static contact pieces 20 and two movable contact pieces 30. The contact piece 20 and the two moving contact pieces 30 are symmetrically arranged on both sides of the conductive support 70, and the inner ends of the two moving contact pieces 30 respectively abut against the corresponding fulcrum grooves 71, and the moving contacts 31 of the two moving contact pieces 30 are both Located at the outer end of the main body of the moving contact and above the corresponding static contact 21, the keycap 40 urges the two moving contacts 30 to turn down and press down, while the conductive support 70 and the two moving contacts 30 constitute the aforementioned The balance frame mechanism 50, the reset mechanism 60 is a tension spring, and the two ends of the tension spring are respectively connected with the outer ends of the two moving contact pieces 30.

As shown in Figure 9, in the free state, the two movable contacts 31 are separated from the corresponding static contacts 21; as shown in Figure 10, when the keycap 40 is pressed, the keycap 40 acts on the two movable contacts 30, so that the moving contacts 31 of the two moving contacts 30 are respectively in contact with the corresponding static contacts 21 to achieve conduction. At this time, the extension spring is in a stretched state. When the keycap 40 is released, the extension spring Restoring the deformation causes the upper ends of the two moving contacts 30 to approach each other to reset, so that the moving contacts 31 leave the corresponding static contacts 21 and disconnect, and the keycap 40 also resets upward under the action of the two moving contacts 30 . the

Please refer to Fig. 11 and shown in Fig. 12, it shows the specific structure of the sixth preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of the aforementioned first preferred embodiment, and its the difference is:

In this embodiment, the two balance pieces 51 are cross-jointed and pivotally connected together, the upper ends of the two balance pieces 51 are symmetrically separated from each other and pivotally connected with the bottom of the keycap 40, and the lower ends of the two balance pieces 51 are symmetrically separated from each other and connected to the seat body. 10 is slidably pivoted, and the reset mechanism 60 is also a tension spring, and the two ends of the tension spring are respectively connected to the lower ends of the two balance pieces 51 .

As shown in Figure 11, in the free state, the movable contact 31 and the static contact 21 are separated from each other; as shown in Figure 12, when the keycap 40 is pressed, the pressing part 41 acts on the movable contact piece 30, so that The movable contact 31 is in contact with the static contact 21 to realize conduction. At this time, the upper ends of the two balance pieces 51 are separated from each other, and the lower ends of the two balance pieces 51 are also separated from each other. The tension spring is in a stretched state. When cap 40, the extension spring impels the lower ends of the two balance pieces 51 to approach each other and reset, and the upper ends of the two balance pieces 51 also approach each other to reset so that the keycap 40 resets, and the pressing portion 41 no longer presses the moving contact piece 30, and the moving contact The sheet 30 returns to elastic deformation, so that the movable contact 31 is separated from the stationary contact 21 and disconnected. the

Please refer to Fig. 13 and shown in Fig. 14, it shows the specific structure of the seventh preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of the aforementioned sixth preferred embodiment, and its the difference is:

In this embodiment, the reset mechanism 60 is two springs 61, the two ends of one spring 61 respectively abut between the seat body 10 and the outer side of the lower end of a balance piece 51, and the two ends of the other spring 61 respectively abut against the seat body 10 and the outer side of the lower end of another balance member 51. When the keycap 40 is pressed, the pressing portion 41 acts on the movable contact piece 30, so that the movable contact 31 contacts with the static contact 21 to realize conduction. At this time, the upper ends of the two balance pieces 51 are separated from each other, and the two The lower ends of the balance pieces 51 are also separated from each other, and the two springs 61 are in a compressed state. When the keycap 40 is released, the two springs 61 respectively impel the lower ends of the two balance pieces 51 to approach each other to reset, and the upper ends of the two balance pieces 51 are also in a state of being compressed. The keycap 40 is reset when approaching the reset, the pressing portion 41 no longer presses the moving contact piece 30 , and the moving contact piece 30 resumes elastic deformation, so that the moving contact 31 is separated from the static contact 21 and disconnected.

Please refer to Fig. 15 and shown in Fig. 16, it shows the specific structure of the eighth preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of the aforementioned first preferred embodiment, and its the difference is:

In this embodiment, the balance frame mechanism 50 is a torsion spring, and the torsion spring includes a connecting portion 52 and a support rod portion 53 symmetrically extending from the connecting portion 52 to both sides. The connecting portion 52 and the keycap 40 The bottoms are connected at the center, and the lower end of the support rod portion 53 abuts against the seat body 10 , and at the same time, the torsion spring constitutes the aforementioned reset mechanism 60 to push the keycap 40 to reset upward. When the keycap 40 is pressed, the pressing portion 41 acts on the movable contact piece 30, so that the movable contact 31 contacts with the static contact 21 to realize conduction. At this time, the lower ends of the two supporting rods 53 are separated from each other, The torsion spring is in a compressed state. When the keycap 40 is released, the torsion spring resumes its deformation, and the two support rods 53 impel the keycap 40 to reset. The elastic deformation is restored, so that the movable contact 31 is separated from the static contact 21 and disconnected.

Please refer to Fig. 17 to Fig. 20, which shows the specific structure of the ninth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment. the difference is:

In this embodiment, a pressing rod 42 extends downward from the center of the bottom of the keycap 40, and both sides of the pressing rod 42 are symmetrically recessed with fulcrum grooves 401, and there are two static contacts 20, which are respectively Symmetrically arranged on both sides of the pressing rod 42, the static contacts 21 of the two static contact pieces 20 are all facing downward, the moving contact piece 30 includes a frame body 32 and elastic pieces 33 integrally extending from both sides of the frame body 32 , both sides of the frame body 32 are provided with movable contacts 31, the two movable contacts 31 are facing upward and are respectively located directly below the corresponding static contacts 21, the two elastic pieces 33 are opposite to each other, and the ends of the two elastic pieces 33 are against the In the corresponding fulcrum groove 401, the pressing rod 42 causes the two elastic pieces 33 to tilt up. When the two elastic pieces 33 are in the tilted state, the movable contact 31 contacts the static contact 21; the balance frame mechanism 50 includes two balance pieces 51 , the two balance pieces 51 are cross-jointed together, the upper ends of the two balance pieces 51 are symmetrically separated from each other and are pivotally connected with the bottom of the keycap 40, and the lower ends of the two balance pieces 51 are symmetrically separated from each other and are pivotally connected with the seat body 10; The reset mechanism 60 is a spring, and the two ends of the spring respectively abut between the seat body 10 and the pressing rod 42 to force the keycap 40 to reset.

As shown in FIG. 17 and FIG. 18 , in the free state, the two movable contacts 31 are separated from the corresponding static contacts 21 , and the upper ends of the two elastic pieces 33 are located above the horizontal plane of the frame body 32 . As shown in Figures 19 and 20, when the keycap 40 is pressed, the pressing rod 42 moves downward, causing the spring piece 33 to lift up, and the bottom surface of the frame body 32 where the spring piece 33 moves, the movable contact 31 and The static contact 21 contacts, and at the same time, the spring is compressed; when the keycap 40 is released, the spring recovers and deforms, and the spring acts on the pressing rod 42 to make the keycap 40 reset, and when the pressing member 42 moves upward, it drives the shrapnel 33 to return upward The deformation is recovered, so that the movable contact 31 is separated from the static contact 21 and disconnected. the

Please refer to Fig. 21 to Fig. 24, which shows the specific structure of the tenth preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of the aforementioned first preferred embodiment, and its the difference is:

In this embodiment, a supporting conductor 80 is provided on the base body 10, the upper end of the supporting conductor 80 protrudes from the base body 10, and it can be electrically connected to an external circuit board by welding. Both sides of the supporting conductor 80 are respectively provided with The first fulcrum groove 81 and the second fulcrum groove 82, the inner end of a support piece 90 is against the first fulcrum groove 81, and the inner end of the movable contact piece 30 is against the second fulcrum groove 82 to maintain electrical contact with the support conductor 80. connection, the movable contact piece 30 and the support piece 90 are respectively located on both sides of the support conductor 80, the movable contact 31 is arranged on the outer end of the movable contact piece 30, and the movable contact 31 faces downward and is located above the static contact 21; the reset The mechanism 60 is a tension spring, and the two ends of the tension spring are respectively connected with the outer end of the movable contact piece 30 and the outer end of the support piece 90; the balance frame mechanism 50 also includes two balance pieces 51, which are cross-jointed Together, the upper ends of the two balance pieces 51 are symmetrically separated from each other and pivotally connected with the bottom of the keycap 40 , and the lower ends of the two balance pieces 51 are symmetrically separated from each other and pivotally connected with the base 10 .

As shown in FIG. 21 and FIG. 22 , in the free state, the two moving contacts 31 are separated from the corresponding stationary contacts 21 . As shown in Fig. 23 and Fig. 24, when the keycap 40 is pressed, the keycap 40 acts on the supporting piece 90, and the supporting piece 90 turns downwards, and under the action of the tension spring, the movable contact piece 30 also turns downwards. Flip over, so that the movable contact 31 contacts with the static contact 21 to achieve conduction, and at this time the extension spring is in a stretched state; when the keycap 40 is released, the extension spring resumes deformation, and the extension spring promotes the supporting piece 90 and the moving contact piece 30 turns upwards and resets, and when the support sheet 90 turns upwards, the keycap 40 is forced to reset, and the keycap 40 impels the gimbal mechanism 50 to reset. Open the connection. the

Please refer to shown in Figure 25, which shows the specific structure of the eleventh preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of the foregoing tenth preferred embodiment, the difference yes:

In this embodiment, the balance frame mechanism 50 is installed on the external keyboard support plate 10a, that is, the balance frame mechanism 50 can be installed on the seat body 10 as described above, and can also be installed on the external keyboard support plate 10a, When the gimbal mechanism 50 is installed on the external keyboard support plate 10a, the volume of the base body 10 can be reduced, and the structure is simpler, making it easier to form.

The working principle of this embodiment is basically the same as that of the aforementioned tenth preferred embodiment, and the working principle of this embodiment will not be described in detail here. the

Please refer to Fig. 26 to Fig. 29, which shows the specific structure of the twelfth preferred embodiment of the present utility model, the specific structure of this embodiment is basically the same as the specific structure of the foregoing tenth preferred embodiment, its The difference is:

In this embodiment, the supporting conductor 80 has a supporting portion 83 and a connecting portion 84, the outer end side of the supporting portion 83 is provided with a fulcrum groove 801, and a clearance space 802 is formed between the supporting portion 83 and the connecting portion 84. The inner end of the moving contact piece 30 is against the fulcrum groove 801, the moving contact point 31 is arranged on the outer end of the moving contact piece 30, the moving contact point 31 faces down and is located above the static contact point 21; the reset mechanism 60 is a tension spring , the two ends of the extension spring are respectively connected with the outer end of the movable contact piece 30 and the top end of the connecting part 84, and the extension spring is suspended in the space 802, and the bottom of the keycap 40 extends downwards to be used for pressing the extension spring. The pressing rod 43 is located above the space 802; the balance frame mechanism 50 includes two balance pieces 51, the two balance pieces 51 are crossed and pivotally connected together, and the upper ends of the two balance pieces 51 are symmetrically separated from each other and It is pivotally connected to the bottom of the keycap 40 , and the lower ends of the two balance pieces 51 are symmetrically separated from each other and pivotally connected to the base 10 .

As shown in FIG. 26 and FIG. 27 , in the free state, the movable contact 31 and the stationary contact 21 are separated from each other. As shown in Figures 28 and 29, when the keycap 40 is pressed, the pressing rod 43 of the keycap 40 acts on the tension spring, and the outer end of the movable contact piece 30 is turned downward, so that the movable contact 31 and the static Contact 21 contacts to realize conduction, and now the extension spring is in a stretched state; when the keycap 40 is released, the extension spring recovers and deforms, and the extension spring acts on the pressing rod 43 to make the keycap 40 reset upwards, and the keycap 40 impels the gimbal mechanism 50 to reset, and at the same time, after the movable contact 30 is flipped up and reset, the movable contact 31 leaves the static contact 21 and is disconnected. the

Please refer to Fig. 30 to Fig. 33, which shows the specific structure of the thirteenth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned tenth preferred embodiment. The difference is:

In this embodiment, the base body 10 is provided with a support conductor 80 and a support piece 90, the support piece 90 is arranged obliquely, the lower end of the support piece 90 is against one side of the base body 10, and the upper end of the support piece 90 is located on the base body. The other side of 10 is against the bottom of the keycap 40, the support conductor 80 is provided with a fulcrum groove 803, one end of the movable contact piece 30 is abutted in the fulcrum groove 803, and the movable contact 31 is arranged on the bottom of the movable contact piece 30. On the other end, the movable contact 31 faces down and is located above the static contact 21; the reset mechanism 6 is an extension spring, and the two ends of the extension spring are respectively connected with the outer end of the movable contact piece 30 and the upper end of the support piece 90; the balance The frame mechanism 50 includes two balance pieces 51, the two balance pieces 51 are crossed and pivotally connected together, the upper ends of the two balance pieces 51 are symmetrically separated from each other and pivotally connected with the bottom of the keycap 40, and the lower ends of the two balance pieces 51 are symmetrically separated from each other And it is pivotally connected with the seat body 10 .

As shown in FIG. 30 and FIG. 31 , in the free state, the movable contact 31 and the stationary contact 21 are separated from each other. As shown in Figure 32 and Figure 33, when the keycap 40 is pressed, the keycap 40 acts on the support piece 90 through the balance frame mechanism 50, and the support piece 90 is stretched by the tension spring, and the outside of the movable contact piece 30 When the keycap 40 is loosened, the extension spring recovers and deforms, and the extension spring acts on the support piece 90 to make the keycap 40 reset upwards, and the key The cap 40 urges the gimbal mechanism 50 to reset, and at the same time, after the movable contact piece 30 is flipped up and reset, the movable contact 31 leaves the static contact 21 and is disconnected. the

Please refer to Fig. 34 to Fig. 41, which shows the specific structure of the fourteenth preferred embodiment of the present utility model, including PCB board 10', seat body 20', static contact piece 30', supporting conductor 40 ', moving contact sheet 50', lower frame 60', upper frame 70' and keycap 80'. the

The PCB board 10' is provided with an LED lamp 11', the base body 20' is disposed on the PCB board 10', the base body 20' is provided with a notch 21', and the LED lamp 11' is located in the notch 21'. the

The static contact piece 30' and the supporting conductor 40' are separately arranged on the base body 20', the static contact piece 30' has a first welding leg 31' and a static contact 32', and the supporting conductor 40' has a second welding leg 41'. Both the second soldering leg 41' and the first soldering leg 31' protrude out of the seat body 20' and are soldered and electrically connected to the PCB board 10'. the

The upper end of the support conductor 40' is provided with a fulcrum groove 401', and the inner end of the movable contact piece 50' abuts against the fulcrum groove 401' to maintain contact and electrical connection with the support conductor 40', and the outer end of the movable contact piece 50' has a movable contact. Point 51', the movable contact 51' is located above the stationary contact 32'. the

The upper frame 70' and the lower frame 60' intersect each other and are hinged together in a superimposed manner. The upper frame 70' and the lower frame 60' constitute the gimbal mechanism described in the foregoing implementations. The upper frame 70' The lower end and the lower end of the lower frame 60' are pivotally connected to the two ends of the seat body 20' respectively, the upper end of the upper frame 70' and the upper end of the lower frame 60' are pivotally connected to the bottom two ends of the keycap 80' respectively, and the upper frame 70' It forms an X-shaped structure with the lower frame 60' and drives the movable contact piece 50' to move. When the upper frame 70' and the lower frame 60' are in a superimposed state, the movable contact 51' is electrically connected with the static contact 32'. For the movable contact piece 50 ′, the elastic member 90 ′ is arranged on the movable contact piece 50 ′ to reset so that the movable contact 51 ′ is separated from the static contact 32 ′. The elastic member 90 constitutes the reset mechanism described in the foregoing implementations, The reset mechanism promotes the reset of the elastic piece 50'. the

Specifically, in this embodiment, both the lower frame 60' and the upper frame 70' are U-shaped, the lower frame 60' includes a first cross bar 61' and two first connecting rods 62', the first Both ends of the crossbar 61' extend outwards with a first pivot shaft 63', the first pivot shaft 63' is pivotally connected to the keycap 80', and the two first connecting rods 62' are parallel to each other and respectively connected to the first The two ends of a cross bar 61' are integrally connected, and the inner sides of the tail ends of the two first connecting rods 62' are extended with a second pivot shaft 64', and the second pivot shaft 64' is pivotally connected with the seat body 20'; The upper frame 70' includes a second cross bar 71' and two second connecting rods 72'. Both ends of the second cross bar 71' extend outward with a third pivot axis 73', and the third pivot shaft 73' The shaft 73' is pivotally connected to the keycap 80', the two second connecting rods 72' are parallel to each other and integrally connected with the two ends of the second cross bar 71' respectively, and the insides of the tail ends of the two second connecting rods 72' both extend There is a fourth pivot shaft 74', the fourth pivot shaft 74' is pivotally connected to the seat body 20', and the two second connecting rods 72' are respectively located inside the two first connecting rods 62', and the two second connecting rods 62' The middle parts of the connecting rods 72' are respectively pivotally connected with the middle parts of the two first connecting rods 62'. In this embodiment, a sixth pivot shaft 75' extends outward from the middle part of the second connecting rods 72'. Correspondingly, the first connecting rod 62' is provided with a pivot hole 65', and the sixth pivot shaft 75' is inserted into the pivot hole 65' for pivot connection. the

The tail end surface of the first connecting rod 62' is recessed with a first embedding groove 601', and the inside of the front end of the first connecting rod 62' is recessed with a second embedding groove 602'. The front half of the rod 72' is embedded in the first embedding groove 601', and the second half of the second connecting rod 72' is embedded in the second embedding groove 602', so as to make the product thinner. the

The seat body 20' is recessed with a cavity 22', two first pivotal grooves 23' and two second pivotal grooves 24', and the two first pivotal grooves 23' and two second pivotal grooves 24' Distributed at the four corners of the surface of the seat body 20', the aforementioned second pivot shaft 64' and fourth pivot shaft 74' are respectively snapped into the first pivot groove 23' and the second pivot groove 24' , and the base 20' is provided with an upper cover 10b, the upper cover 10b limits the second pivot shaft 64' and the fourth pivot shaft 74' to the first pivot groove 23' and the second pivot respectively. In the receiving groove 24', the movable contact piece 50' is embedded in the concave cavity 22' and located under the upper cover 10b. The two opposite side plates of the upper cover 10b are provided with button holes 11b, and correspondingly, the seat body 20' is provided with a button part 25', and the button part 25' and the button holes 11b are connected with each other so as to achieve the upper The cover 10b is installed on the seat body 20', and the top end of the supporting conductor 40' is provided with a positioning part 42', the upper cover 10b is provided with a positioning hole 12b, and the positioning part 42' is inserted into the positioning hole 12b for positioning, and the Pins 13b extend from both side plates of the upper cover 10b, and the pins 13b are inserted into the PCB 10' and fixed by welding. the

And, the bottom of the keycap 80' is provided with a third pivotal slot 81' and a fourth pivotal slot 82', and the first pivotal shaft 63' and the third pivotal shaft 73' are buckled on the third pivotal shaft respectively. The pivot connection groove 81' is pivotally connected with the fourth pivot connection groove 82'. the

In this embodiment, the elastic member 90' is a tension spring, and the tension spring exposes the upper cover 10b. The two ends of the tension spring respectively have a first hook part 91' and a second hook part 92'. The upper frame 70' The second cross bar 71' is provided with a first hanging hole 701', the first hook part 91' is hooked with the first hanging hole 701', and the moving contact piece 50' is provided with a second hanging hole 52'. The second hook portion 92' is hooked with the second hanging hole 52'. the

In addition, the seat body 20' is embedded in the aforementioned X-shaped structure, so that the volume of the product is smaller. the

When assembling, the static contact piece 30' and the supporting conductor 40' are respectively socketed on the corresponding positions of the seat body 20' from top to bottom, and then the moving contact piece 50' is placed in the cavity 22', and the moving contact piece The sheet 50' is kept in contact with the supporting conductor 40', and then the upper frame 70' and the lower frame 60' are cross-jointed with each other so that the second pivot axis 64' and the fourth pivot axis 74' correspond to each other. Snap into the first pivotal groove 23' and the second pivotal groove 24', then, hook the first hook part 91' of the extension spring to the first hanging hole 701', and hook the second hook part 91' of the extension spring The hook part 92' is hooked with the second hanging hole 52', and then the upper cover 10b is buckled on the seat body 20' from top to bottom, and then the keycap 80' is assembled so that the first pivot shaft 63' and the second pivot shaft 63' The three pivot shafts 73 ′ are correspondingly buckled in the third pivot groove 81 ′ and the fourth pivot groove 82 ′ respectively. the

When in use, when the keycap 80' is pressed, the upper frame 70' and the lower frame 60' move downward to be stacked together, at the same time, the elastic member 90' is stretched, and the movable contact piece 50' moves downward , so that the movable contact 51' is electrically connected to the static contact 32'; when the keycap 80' is released, the elastic member 90' recovers to deform, and under the action of the elastic member 90', the upper frame 70' and the lower frame 60 ' is opened upwards, the keycap 80' resets upwards, and at the same time, the movable contact piece 50' also resets upwards, so that the movable contact 51' is separated from the static contact 32'. the

Please refer to shown in Figure 42, which shows the specific structure of the fifteenth preferred embodiment of the present invention, the specific structure of this embodiment is basically the same as the specific structure of the aforementioned fourteenth preferred embodiment, the difference is:

In this embodiment, the elastic member 90 ′ is an elastic piece, which is integrally formed on the moving contact piece 50 ′, and the moving contact piece 50 ′ is installed and connected with the lower frame 60 ′.

The assembling process and using method of this embodiment are the same as those of the aforementioned first preferred embodiment, and the assembling process and using method of this embodiment will not be described in detail here. the

Please refer to shown in Figure 43, which shows the specific structure of the sixteenth preferred embodiment of the present invention, the specific structure of this embodiment is basically the same as the specific structure of the aforementioned fourteenth preferred embodiment, the difference is:

The seat body 20' is located below the X-shaped structure, and the upper frame 70' and the lower frame 60' protrude upwards out of the upper cover 10b.

The assembling process and using method of this embodiment are basically the same as those of the aforementioned first preferred embodiment, and the assembling process and using method of this embodiment will not be described in detail here. the

The key point of the design of this utility model is: by using the balance frame mechanism to guide the keycap to press down steadily, the keycap or balance frame mechanism acts on the moving contact piece to make the moving contact contact with the static contact, and cooperates with the reset mechanism to make the moving contact contact. Chip, keycap or balance frame mechanism reset, instead of the traditional form of using guide posts, so that the overall thickness of the product is thinner, and, no matter where the finger acts on the keycap, the balance frame mechanism can be linked to achieve key The cap is pressed down steadily, making the conductive connection between the static contact piece and the moving contact piece more sensitive, and the product is more convenient to use.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model. the

Claims (16)

1. the ultra-thin keyboard switch that can steadily press down, is characterized in that: include pedestal, static contact, movable contact spring, keycap, balancing stand mechanism and resetting device; This static contact and movable contact spring are all arranged on pedestal, static contact has fixed contact, movable contact spring has moving contact, this moving contact and fixed contact setting up and down, this keycap covers static contact and movable contact spring, and balancing stand mechanism and resetting device are all positioned at the below of keycap, and balancing stand mechanism guiding keycap steadily presses down, this keycap or balancing stand mechanism act on movable contact spring and impel moving contact to contact with fixed contact, and this resetting device impels movable contact spring, keycap or balancing stand mechanism to reset.

2. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: described movable contact spring is elastic piece structure, moving contact is positioned at the top of fixed contact, the bottom of this keycap is convexly equipped with pressure section, this pressure section is positioned at the top of movable contact spring, pressure section impels movable contact spring to press down, this balancing stand mechanism includes two balance elements, with pedestal pivot joint while that the lower end of this two balance element being articulated, the upper end of two balance elements is mutually symmetrical separately, and the upper end of two balance elements all with keycap bottom pivot joint slidably; This resetting device is extension spring, and the two ends of extension spring connect the upper end of two balance elements respectively.

3. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: described movable contact spring is elastic piece structure, moving contact is positioned at the top of fixed contact, the bottom of this keycap is convexly equipped with pressure section, this pressure section is positioned at the top of movable contact spring, pressure section impels movable contact spring to press down, this balancing stand mechanism includes two balance elements, the upper end of this two balance element be articulated simultaneously with keycap bottom pivot joint, the lower end of two balance elements is mutually symmetrical separately, and the lower end of two balance elements all with pedestal pivot joint slidably; This resetting device is extension spring, and the two ends of extension spring connect the lower end of two balance elements respectively.

4. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: described movable contact spring is elastic piece structure, moving contact is positioned at the top of fixed contact, the bottom of this keycap is convexly equipped with pressure section, this pressure section is positioned at the top of movable contact spring, pressure section impels movable contact spring to press down, this balancing stand mechanism includes two balance elements, the lower end of this two balance element be separated from each other and respectively with pedestal pivot joint, the upper end of two balance elements is mutually symmetrical separately, and the upper end of two balance elements all with keycap bottom pivot joint slidably; This resetting device is extension spring, and the two ends of extension spring connect the upper end of two balance elements respectively.

5. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: described movable contact spring is elastic piece structure, moving contact is positioned at the top of fixed contact, the bottom of this keycap is convexly equipped with pressure section, this pressure section is positioned at the top of movable contact spring, pressure section impels movable contact spring to press down, this balancing stand mechanism includes two balance elements, the lower end of this two balance element be separated from each other and respectively with pedestal pivot joint, the upper end of two balance elements is mutually symmetrical separately, and the upper end of two balance elements all with keycap bottom pivot joint slidably; This resetting device is spring, and the lower end that the two ends of spring are butted on two balance elements respectively impels two balance elements to reset.

6. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: described pedestal is provided with conductive support, the upper end bilateral symmetry of conductive support is provided with pivot slot, this static contact and movable contact spring are two, two static contacts and two movable contact springs are all symmetricly set in the both sides of conductive support, the inner of two movable contact springs is butted in corresponding pivot slot respectively, the moving contact of two movable contact springs is all positioned at the outer end of movable contact spring main body and is positioned at the top of the fixed contact of correspondence, this keycap impels two movable contact springs to overturn downwards to press down, constitute aforementioned balancing stand mechanism by conductive support and two movable contact springs simultaneously, this resetting device is extension spring, the two ends of extension spring are connected with the outer end of two movable contact springs respectively.

7. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: described movable contact spring is elastic piece structure, moving contact is positioned at the top of fixed contact, the bottom of this keycap is convexly equipped with pressure section, this pressure section is positioned at the top of movable contact spring, pressure section impels movable contact spring to press down, this balancing stand mechanism includes two balance elements, this two balance element intersection is articulated, the upper end of two balance elements be mutually symmetrical separately and with the bottom pivot joint of keycap, and the lower end of two balance elements be mutually symmetrical separately and with pedestal pivot joint slidably, this resetting device is extension spring, the two ends of extension spring connect the lower end of two balance elements respectively.

8. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: described movable contact spring is elastic piece structure, moving contact is positioned at the top of fixed contact, the bottom of this keycap is convexly equipped with pressure section, this pressure section is positioned at the top of movable contact spring, pressure section impels movable contact spring to press down, this balancing stand mechanism includes two balance elements, this two balance element intersection is articulated, the upper end of two balance elements be mutually symmetrical separately and with the bottom pivot joint of keycap, and the lower end of two balance elements be mutually symmetrical separately and with pedestal pivot joint slidably, this resetting device is two springs, the two ends of one spring are butted between the lower end outside of pedestal and a balance element respectively, the two ends of another spring are butted between pedestal and the lower end outside of another balance element respectively.

9. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: described movable contact spring is elastic piece structure, moving contact is positioned at the top of fixed contact, the bottom of this keycap is convexly equipped with pressure section, this pressure section is positioned at the top of movable contact spring, pressure section impels movable contact spring to press down, this balancing stand mechanism is torsion spring, this torsion spring include connecting portion and on connecting portion to the support bar portion that bilateral symmetry is extended, this connecting portion is connected with the bottom centre of keycap, the lower end in support bar portion is butted on pedestal, simultaneously, this torsion spring constitutes foregoing reset mechanism and impels keycap upwards to reset.

10. the ultra-thin keyboard switch that can steadily press down according to claim 1, it is characterized in that: the bottom centre of described keycap extends downwards and compresses bar, this bilateral symmetry compressing bar is arranged with pivot slot, this static contact is two, they be symmetricly set in respectively compress bar both sides outside, the fixed contact of two static contacts all down, the shell fragment that this movable contact spring includes a framework and integrally extends in framework both sides, the both sides of framework are provided with moving contact, two moving contacts are all upward and immediately below the fixed contact laying respectively at correspondence, two shell fragments toward each other, the end of two shell fragments is butted in corresponding pivot slot, compressing bar impels two shell fragments to tilt, under two shell fragments are in tilting state, moving contact contacts with fixed contact, this balancing stand mechanism includes two balance elements, and this two balance element intersects and is articulated, the upper end of two balance elements be mutually symmetrical separately and with the bottom pivot joint of keycap, and the lower end of two balance elements be mutually symmetrical separately and with pedestal pivot joint, this resetting device is spring, and the two ends of spring are butted on pedestal respectively and compress between bar impels keycap to reset.

The 11. ultra-thin keyboard switches that can steadily press down according to claim 1, it is characterized in that: described pedestal is provided with supportive conductors, the both sides of this supportive conductors are respectively arranged with the first pivot slot and the second pivot slot, the inner of one support chip is butted in the first pivot slot, the inner of movable contact spring is butted in the second pivot slot, movable contact spring and support chip lay respectively at the both sides of supportive conductors, and moving contact is arranged at the outer end of movable contact spring, and moving contact down and be positioned at the top of fixed contact; This resetting device is extension spring, and the two ends of extension spring are connected with the outer end of movable contact spring and the outer end of support chip respectively; This balancing stand mechanism includes two balance elements, and this two balance element intersects and is articulated, the upper end of two balance elements be mutually symmetrical separately and with the bottom pivot joint of keycap, and the lower end of two balance elements be mutually symmetrical separately and with pedestal pivot joint.

The 12. ultra-thin keyboard switches that can steadily press down according to claim 1, it is characterized in that: described pedestal is provided with supportive conductors, this supportive conductors has support portion and connecting portion, the outer end side surface of support portion is provided with pivot slot, be formed between this support portion and connecting portion and allow bit space, the inner of this movable contact spring is butted in pivot slot, and moving contact is arranged at the outer end of movable contact spring, and moving contact down and be positioned at the top of fixed contact; This resetting device is extension spring, and the two ends of extension spring are connected with the outer end of movable contact spring and connecting portion top respectively, and extension spring is suspended from and allows in bit space, and the bottom of this keycap is extended downwards to have and compressed bar for what compress extension spring, compresses bar and is positioned at and allows the top of bit space; This balancing stand mechanism includes two balance elements, and this two balance element intersects and is articulated, the upper end of two balance elements be mutually symmetrical separately and with the bottom pivot joint of keycap, and the lower end of two balance elements be mutually symmetrical separately and with pedestal pivot joint.

The 13. ultra-thin keyboard switches that can steadily press down according to claim 1, it is characterized in that: described pedestal is provided with support chip and supportive conductors, this support chip is obliquely installed, the lower end of support chip is butted on the side of pedestal, the upper end of support chip is positioned at the opposite side of pedestal and is butted on the bottom of keycap, and this supportive conductors is provided with pivot slot, and one end of this movable contact spring is butted in pivot slot, moving contact is arranged at the other end of movable contact spring, and moving contact down and be positioned at the top of fixed contact; This resetting device is extension spring, and the two ends of extension spring are connected with the outer end of movable contact spring and the upper end of support chip respectively; This balancing stand mechanism includes two balance elements, and this two balance element intersects and is articulated, the upper end of two balance elements be mutually symmetrical separately and with the bottom pivot joint of keycap, and the lower end of two balance elements be mutually symmetrical separately and with pedestal pivot joint.

The 14. ultra-thin keyboard switches that can steadily press down according to claim 1, is characterized in that: described balancing stand mechanism is installed on pedestal or in external keyboard supporting bracket.

The 15. ultra-thin keyboard switches that can steadily press down according to claim 1, it is characterized in that: described pedestal is provided with supportive conductors, this static contact and supportive conductors are separated from each other and are arranged on pedestal, the upper end of supportive conductors is provided with pivot slot, the inner of movable contact spring is butted in pivot slot keeps in touch electrical connection, and moving contact is arranged at the outer end of movable contact spring and is positioned at the top of fixed contact; This balancing stand mechanism includes upper ledge and lower frame, be articulated to upper ledge and the intersected with each other and foldable of lower frame, the lower end of upper ledge and the lower end of lower frame respectively with the two ends pivot joint of pedestal, the upper end of upper ledge and the upper end of lower frame respectively with two ends, the bottom pivot joint of keycap, upper ledge and lower frame form X-type structure and drive movable contact spring movable, when upper ledge and lower frame are in closed state, this moving contact contacts with fixed contact and is electrically connected; This resetting device impels movable contact spring to reset.

The 16. ultra-thin keyboard switches that can steadily press down according to claim 15, is characterized in that: described resetting device is extension spring or the one-body molded shell fragment be arranged on movable contact spring.